Name: Helga Swiss (formerly Welshman)

Age: 26 (first introduction) 32 after Thanos snap

Gender: Female 

Nationality: German

Hero name: Lady Bat

Family: Anna Swiss (mother - deceased), Otto Welshman (father - Deceased) Hans Welshman (Paternal Uncle - Alive), Melissa and Alice (twin sisters - disappeared by Thanos snap but came back)

Personality: A spunky, Crass, Motherly but adventurous girl. She is a active person and often found attempting to play. She can be reckless, no sense of self perseverance and absolutely not the most forgiving person. The last part makes her feel like a hypocrite so she pretends to act forgiving 

Crush: Pietro Maximoff 

Occupation: Agent of Animals (Formerly), Avengers

Powers: Can speak to bats, Can transform into a bat monster, heightened durability and senses, can use echo location, have a super Sonic scream, Can keep her intelligent in bat form, Can spit a glue like mucas that hardens on target

Weaknesses: Before the avengers Helga would have these trigger words used by her uncle to turn her into a worse bat monster driven purely by instinct and fear, she learned to turn into her form without the words but it seriously physically harms her and weakens her when she turns back from this form, Mucas last for only 2 hours, not immune to sharp end bullets, can swim due to truama, not too well in the heat, she is programmed to never harm a child, her super Sonic can only last as long as she has air in her lungs

Pietro doesn't die in this au of Marvel. He just can't!